Eraser

Dariks Boot and Nuke ("DBAN") is a self-contained boot disk that securely wipes the hard disks of most computers. DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency...

This software permanently wipes files from PCs, USBs, and other devices, erases web history and app traces to prevent misuse, and offers scheduled wiping.

BCWipe data wiping software enables you to permanently delete files selectively so that they can never be recovered or undeleted. BCWipe embeds itself within Windows and can be activated from the Explorer FILE Menu OR from the context (right-click) menu OR from BCWipe Task...